Method of distributing electricity by secondary batteries



(No Model.)

W. W. GRISGOM. METHOD OF DISTRIBUTING ELECTRICITY BY SECONDARYBATTERIES.

No. 404,968. Patented June 11, 1889..

I/v i WW/O M I vamboz 5 M an '4 hogmphnr, Washmglun, n c

UNITED STATES PATENT OFFICE.

\VILLIAM TV. GRISCOM, OF HAVERFORD COLLEGE, ASSIGNOR TO THE ELEC- TRODYNAMIC COMPANY, OF PHILADELPHIA, PENNSYLVANIA.

METHOD OF DISTRIBUTING ELECTRICITY BY SECONDARY BATTERIES.

SPECIFICATION forming part. of Letters Patent No. 404,968, dated June11, 1889.

Application filed February 1, 1889. Serial No. 298,337. (No model.)

To aZZ whom it may concern: a dynamo-electric machine. It is located atBeit known that I, T/VILLIAM TV. GRISCOM, or near a suitable source ofpower, as a steama citizen of the United States, and a resident engineor water-wheel. .of Haverford College, in the county of Mont- S to S aresub-stations some distance 5 gomery and State of Pennsylvania, haveinfrom the dynamo D and from each other.

vented certain new and useful Improvements At each station S to S thereis located a dein the Method of Distributing Electricity by vice orapparatus for storing electric energy the Storage System, of which thefollowing electro-chemically, such as a secondary bat- 1s aspecification. tcry B. IO My invention is an improvement in the O is aconductor of comparatively small method of distributing electricity bythe storgage for conveying electric energy from the age system. dynamo Dto the sub-stations S S 850., in

Others have heretofore placed a dynamo the form of aso-called current ofacomparamachine at ornear a suitable source of power, tively highelectro-motive force and compara- I 5 and have connected such dynamowith a sectively low intensity. All the batteries B are ondary batterylocated at a greater or less connected to the circuit C. At eachsub-stadistance therefrom, and near the point where tion there is aworking-circuit 20, containing the electric energy was to be utilized.The translating devices, as lamps Z. This circuit battery was firstcharged from the dynamo. is connected to the battery B and tothe con- 20The dynamo was then disconnected and ductor O. Switches 3 are placed ateach suba Working-circuit containing translating destation fordisconnecting conductor 0 from vicessuch as g1ow-lamps-was connected tothe sub-station. The translating devices in the battery until thebattery was exhausted. the sub-station circuits w, by reason of their Asan economical distributing system this number and capacity, absorbelectric energy 25 was meritorious, but susceptible of improveat agreater rate or intensity than battery B ment, for after the battery wascharged the can supply operating alone, or greater than dynamo, itsprime motor, and the chargingconductor C can carry; I but byoperatcircuit were idle for a considerable time, and ing dynamo D duringthe periods of least as all batteries have a discharge rate beyondconsumption in the circuits w the batteries B 0 which it is undesirableto draw current from can be charged, and during the periods of them alimit to the number and character of greater consumption batteries l3,operating the translating devices was soon reached. in conjunction andsimultaneously with dy- My improved method of distribution connamo D,are capable of supplying the maxisists in generating electricity at ornear a mum intensity of current required at any or 8 5 3 5 convenientsource of power, conveying it to all sub-stations. There is, therefore,a great the point of consumption through the mesaving in the weightofcopper in the conducdium of a current of low intensity, storing it torO, and the dynamo, with its prime moin the form of chemical potential,as in a sector and accompanying apparatus, is profitondary battery, andthen simultaneously diably utilized more constantly or for a much 4orecting the current from both primary genlonger time than has heretoforebeen the case. erator and storage system into a workin g-cirhat I claim,and desire to secure by Letters cuit containing translatingdevices--such as Patent, is lampsby which means the generating-plant 1.The improved method of distributing is or may be continuously operated,and the electricity herein described, which consists 45 number orcharacter of the translating devices in generating electricity at ornear a suitable as regards the consumption of energy thereby source ofpower, conveying it to the point of may be greatly increased.consumption through the medium of a cur- The accompanying drawingillustrates an rent of comparatively-low intensity, there arrangement ofapparatus employed in pracstoring it in the form of chemical energy, asmo 50 ticing my improved method of distribution. in a secondary battery,and then simultane- D is a primary generator of electricity, as ouslydirecting the current from said gen erator and storage apparatus into aworkingcircuit containing translating devices consuining current at arate exceeding the capacity of the storage apparatus alone,substantially as described.

2. The improvement in the method of distributing electricity hereindescribed, which consists in generating electricity at or near asuitable source of power, conveying it to two or more widely-separatedpoints of consumption through the medium of a current ofcomparatively-low intensity, there storing it in the form of chemicalenergy, as in secondary batteries, and then simultaneously directing thecurrent from said generator and storage apparatus into Working-circuitscontaining translating devices consuming current at a rate exceeding thecapacity of the storage apparatus alone, substantially as described.

3. The method of distributing electricity herein described, whichconsists in generat- WILLIAM W. GRINKX.

\Vitnesses:

DANIEL E. DELAVAN, V. E. ScnAUMnUmi.

